Failed: Version set exist (Error Code: 0x989b)

I have been experiencing issue as below:-

- When performing block replication from PROD Unity 350F to DR Unity 380, encountered error as per the Failed:

Version set exist (Error Code: 0x989b)
Rollback Result: Task was rolled back and marked as failed. This is because some tasks failed or SP rebooted during task execution (Error Code: 0x100a)

Any advise on this?

Thank You